Zobrazeno 1 - 10
of 21
pro vyhledávání: '"S. Y. Dike"'
Publikováno v:
ChemInform. 22
A new synthesis of spirobenzopyran has been accomplished by Friedel- Crafts reaction of various m-dihydroxybenzenes and cycloalkylidene acetic acid in the presence of a Lewis acid. Starting from cycloalkylidene acetic acid novel synthesis of 2-spiro-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f3bce509afc2a2ba4049709309ec9d2
https://doi.org/10.1002/chin.199136196
https://doi.org/10.1002/chin.199136196
Publikováno v:
Tetrahedron. 47:4775-4786
A new synthesis of spirobenzopyran has been accomplished by Friedel- Crafts reaction of various m-dihydroxybenzenes and cycloalkylidene acetic acid in the presence of a Lewis acid. Starting from cycloalkylidene acetic acid novel synthesis of 2-spiro-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::735ff38f124f6aefd0d0a5e09e44f8a9
https://doi.org/10.1016/s0040-4020(01)86481-4
https://doi.org/10.1016/s0040-4020(01)86481-4
Publikováno v:
Proceedings of the Indian Academy of Sciences - Section A. 85:524-530
The reaction of hydroxycoumarins, flavones, isoflavones and chromones with α, β-unsaturated acids, in the presence of PPA has been found to give a number of compounds whose structures have been elucidated on the basis of spectral data and the forma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d36f704b04f5cba3db20bf7dc116e061
https://doi.org/10.1007/bf03051399
https://doi.org/10.1007/bf03051399
Publikováno v:
Proceedings of the Indian Academy of Sciences - Section A. 85:115-124
Cyanoethylation of some dimethyl- and trimethylphenols in acidic and basic media has been investigated. The cyanoethyl derivatives obtained were hydrolysed to the corresponding acids which on cyclisation with PPA afforded either dihydrocoumarin or ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e5666011761d83c5413c333c2996ae
https://doi.org/10.1007/bf03046705
https://doi.org/10.1007/bf03046705
Autor:
S. Y. Dike, J. R. Merchant
Publikováno v:
Proceedings / Indian Academy of Sciences. 87:229-233
Some new 2, 4-diamino-pyrrolo-pyrimidines have been synthesized. Their structures are established on the basis of spectral-analytical data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a90b2e5aa26266a5a872704c71052ea5
https://doi.org/10.1007/bf03182136
https://doi.org/10.1007/bf03182136
Autor:
J. R. Merchant, S. Y. Dike
Publikováno v:
Bulletin of the Chemical Society of Japan. 51:2142-2144
A general and convenient synthesis is described of a number of 2,3-dihydro-4H,5H-pyrano[3,2-c][1]benzopyran-4,5-diones and 2,3-dihydro-4H,5H-pyrano[2,3-b][1]benzothiopyran-4,5-diones. It involves the condensation of 4-hydroxycoumarin derivatives and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68ccad368b7f1ad8a1231b66f3c74ab1
https://doi.org/10.1246/bcsj.51.2142
https://doi.org/10.1246/bcsj.51.2142
Autor:
J. R. Merchant, S. Y. Dike
Publikováno v:
Bulletin of the Chemical Society of Japan. 51:2145-2147
The reaction of 4-hydroxycoumarin and 4-hydroxythiocoumarin with citral in basic as well as acidic conditions led to the formation of tetrahydrocannabiol derivatives. With citronellal, the above hydroxycoumarins afforded the corresponding hexahydroca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbe542ef4439cca02996aa0a338565ae
https://doi.org/10.1246/bcsj.51.2145
https://doi.org/10.1246/bcsj.51.2145
Publikováno v:
Chemischer Informationsdienst. 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::927940dfe3eb4bad6c97c274b9d3cd83
https://doi.org/10.1002/chin.197643232
https://doi.org/10.1002/chin.197643232
Autor:
S. Y. Dike, J. R. Merchant
Publikováno v:
Chemischer Informationsdienst. 9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c32a45f2b5cc1f6c06ae4d763bc3141
https://doi.org/10.1002/chin.197843356
https://doi.org/10.1002/chin.197843356
Autor:
S. Y. DIKE, J. R. MERCHANT
Publikováno v:
Chemischer Informationsdienst. 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5388a732e476717b169a45241659a46e
https://doi.org/10.1002/chin.197904208
https://doi.org/10.1002/chin.197904208